darksiders for pc seems to be very cpu intensive and not well optimized so if you dont have a very powerful cpu you might want to shy away from the game. for me i get anywhere from 17 fps to 50 fps and my comp isnt that bad. also there are no graphics options except res and brightness so you cant tweak the game to run better and you cant change the key commands to other keys.
now i will say it is a good, its fun and it looks nice. whats more is that its seems to have a good story from what i have played.
Wooo for console ports. :/